catch the errorlevel of the command:

[code]
...
/path/to/somecommand ; RC=$?
if [ $RC -eq 0 ] ; then
print - "everything worked out fine"
else
print - "something screwed up"
fi
[code]

The errorlevel is set anew for every command issued, so be sure to get it as soon as the program in question is finished.

bakunin